public class Example7_2 {
  public static void main (String args[]) {
    ShowBoard board =new ShowBoard();
    board.showMess(new OutputEnglish());
    board.showMess(new OutputAlphabet()
    { public void output()
      { for(char c='α';c<='Ω';c++)
      System.out.printf("%3c",c);
        }
    }
    );//注意分号位置
  }
}
